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Facts

Official Name: Falling Mountain
Seismically Monitored: No
Color Code:
Alert Level:
Elevation: 1160m (3805ft)
Latitude: 58.25457
Longitude: -155.17474
Smithsonian VNum:
Pronunciation:
Nearby Towns:
- Karluk 54 mi (87 km) SE
- Kanatak 57 mi (92 km) SW
- King Salmon 62 mi (99 km) NW
- Larsen Bay 66 mi (106 km) SE
- Bristol Bay Borough 73 mi (118 km) NW
Distance from Anchorage: 275 mi (442 km)

Description

From Wood and Kienle (1990)^[1]: "Falling Mountain and Mount Cerberus are the twin domes of pyroxene dacite (64% SiO2) that frame the entrance to Katmai Pass. They are similar in volume (each 0.25 cubic km), composition, lithology, and weathering. Although undated, they are thought to be of early Holocene age because their carapaces are degraded but not significantly glaciated. The two domes are compositionally similar (but not identical) to 1912 dacite. Together with the rhyolitic Novarupta dome, they define a 3-km-long line parallel to, but 4 km behind, the volcanic front."

Name Origin

Falling Mountain was named in 1917 by R.F. Griggs, because of the freqent avalanches down its flanks (Orth, 1971).

References Cited

[1] Volcanoes of North America: United States and Canada, 1990

Wood, C. A., and Kienle, Juergen, (eds.), 1990, Volcanoes of North America: United States and Canada: New York, Cambridge University Press, 354 p.

	Red (Warning)
	Orange (Watch)
	Yellow (Advisory)
	Green (Normal)
	Uninstrumented
	Community
	Webcam
	Instrument
Earthquake Magnitude
0 7+
Earthquake Age
	Last 2 Hours
	Last 2 Days
	Last 1 Week

Alaska Volcano Observatory

Falling Mtn

Facts

Description

Name Origin

References Cited

[1] Volcanoes of North America: United States and Canada, 1990

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